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111. 发明专利

JPS56155577A PHOTOELECTRIC TRANSDUCER 失效
公开(公告)号：JPS56155577A
公开(公告)日：1981-12-01
申请号：JP5869280
申请日：1980-05-06
申请人： RICOH KK
发明人： SAKURAI KOUICHI , SEGAWA HIDEO , MORI KOUJI , ITAGAKI MASAKUNI , ISHIWATARI TATSUMI
IPC分类号： H01L27/146
摘要： PURPOSE:To prevent the lowering of photosensitivity of a photoelectric transducer by coating the exposed portion of the photoelectric transducer layer with an insulating layer for protection. CONSTITUTION:A transparent conductibg film such as In2O3 2 or the like is piled on silica glass 1 or the like and etched into a desired shape. By using masks, CdS4 or the like having a relatively large band gap and CdTe 5 or the like having a relatively small band gap are laminated thereon, and a heat treatment is applied thereto in O2 at each lamination. Then, by using a mask, amorphous si 6 is laminated thereon in order to moreover improve the photoelectric characteristics. Then, one end of the photoelectric transducer layer 3 is coated with SiO2 7 or the like as a protective film, and an electrode 8 of Au or the like is provided. By said constitution, the deterioration of the photoelectric transducer layer resulting from an oxidative reaction, moisture, heat and the like can be prevented by the formation of the protecting film, so that the photoelectric characteristics are not damaged. In addition, because the photoelectric transducer layer 3 is not directly etched, there is no adverse effect due to an etching fluid.

112. 发明专利

JPS56142640A ION ETCHING DEVICE 失效
公开(公告)号：JPS56142640A
公开(公告)日：1981-11-07
申请号：JP4605780
申请日：1980-04-08
申请人： RICOH KK
发明人： ITAGAKI MASANORI , SEGAWA HIDEO , SAKURAI KOUICHI , MORI KOUJI , ISHIWATARI TATSUMI
IPC分类号： C30B33/00 , C30B33/12 , H01J37/305 , H01J37/34 , H01L21/302
摘要： PURPOSE:To improve the efficiency of ion etching treatment by a method wherein an ion gun 13, injection ports thereof are formed crosswise, is installed at the center of a ring shaped substrate holder 11, and the ion gun 13 is operated turning the substrate holder 11. CONSTITUTION:A ring shaped substrate holder 11 is mounted rotatably on a circular base 10, and rectangular substrates 12 are pasted on an inner surface of the substrate holder 11 at proper intervals. An ion gun 13, injection ports 13a thereof are made up crosswise, is installed on the base 10 at a central location of the substrate holder 11. Ion etching is conducted by injecting ion beams for required time turning the substrate holder 11. Thus, the number of the substrates treated per one operation is increased, and long substrates can also be etched. The ionic injection ports are not limited to be a cross form, but may be radial and plural.

113. 发明专利

JPS56137684A PHOTOELECTRIC TRANSDUCING ELEMENT 失效
公开(公告)号：JPS56137684A
公开(公告)日：1981-10-27
申请号：JP4130380
申请日：1980-03-31
申请人： RICOH KK
发明人： MORI KOUJI , SEGAWA HIDEO , SAKURAI KOUICHI , ITAGAKI MASAKUNI , ISHIWATARI TATSUMI
IPC分类号： H01L27/146 , H01L31/072 , H01L31/073
摘要： PURPOSE:To enable lengthening of the element and reduce leak current by constituting the same by using a photoelectric transducing layer consisting of two layers of films of II-VI group compound having different band gaps and an amorphous Si film. CONSTITUTION:A transparent electroconductive film 2 is formed through evaporation on a substrate 1 of phototransmissible material and thereon the photoelectric transducing layer is laminated. The photoelectric transducing layer 2 is constituted by laminating the film 3 of II-VI group compound having a relatively large band gap and the film 4 of II-VI group compound having a smaller band gap than the above in this order. Next, the amorphous Si film 5 is laminated on the photoelectric transducing film, and then an electrode couple 6 is formed on the film 5. The film 5 may be formed also between the film 2 and the film 3. By constituting the photoelectric transducing element in this way, the manufacturing processes therefor are facilitated and the lengthening thereof is made possible, while excellent photoelectric current characteristic with little leak current is obtained.

114. 发明专利

JPS56120259A READER FOR EQUIMULTIPLE TYPE VIDEO INFORMATION 失效
公开(公告)号：JPS56120259A
公开(公告)日：1981-09-21
申请号：JP2377080
申请日：1980-02-27
申请人： RICOH KK
发明人： SAKURAI KOUICHI , SEGAWA HIDEO , MORI KOUJI , ITAGAKI MASAKUNI
IPC分类号： G02B6/04 , H04N1/028 , H04N1/031
摘要： PURPOSE:To enable uniform illumination with small size and good accuracy, by alternately arranging the optical fibers for illumination and photodetection, in an equimultiple type image information reader using an equimultiple sensor. CONSTITUTION:The illuminated light from a light source 21 is radiated on an original plane 30 through a radiation optical fiber 22, and the reflected light is radiated on the primary dimension sensor 24 which is equimultiple with the original plane 30 through photoreception optical fiber 23. In this case, the optical fibers 22, 23 for emission and photodetection and alternately located.

115. 发明专利

JPS56117473A ONEEDIMENSIONAL IMAGE SENSOR 失效
公开(公告)号：JPS56117473A
公开(公告)日：1981-09-14
申请号：JP1987680
申请日：1980-02-20
申请人： RICOH KK
发明人： SEGAWA HIDEO , SAKURAI KOUICHI , MORI KOUJI , ITAGAKI MASAKUNI , ISHIWATARI TATSUMI
IPC分类号： H04N1/028 , G06T1/00 , H01L27/146 , H04N1/03
摘要： PURPOSE:To obtain a small-sized and high-reliability one-dimensional image sensor easily producible, by dividing the paired electrodes opposite to the common electrodes via a photoconductive material layer into groups and then providing the IC chip connected to the paired electrodes of the adjacent groups at the opposite side to each other. CONSTITUTION:The common electrode 4, the photoconductive material layer 5 and individual paired electrodes 6 are formed in stripes on the transparent electrode 1a. The electrodes 6 are divided into the groups G1-G3... formed with the paired electrodes adjacent to each other. Then the IC chip 11 to be connected to the paired electrodes belonging to the groups adjacent to each other is provided on the substrate 1b and 1c which are at the opposite side to each other to the stripe 3, and each paired electrodes 6 is extended toward the IC chip 11 to be connected each. In such constitution, the overall structure is made small and at the same time the space among the extended parts 6a of the electrodes 6 is secured large. Thus the reliability is increased for a connection between a photodiode element and an IC.

116. 发明专利

JPS5690673A IMAGE INFORMATION READER 失效
公开(公告)号：JPS5690673A
公开(公告)日：1981-07-22
申请号：JP16679879
申请日：1979-12-24
申请人： RICOH KK
发明人： SAKURAI KOUICHI , SEGAWA HIDEO , MORI KOUJI , ITAGAKI MASAKUNI
IPC分类号： H04N1/028 , H04N1/031
摘要： PURPOSE:To obtain picture information uniform in brightness over the entire screen by positioning a light source behind a photodetector and by causing reflected light from an original to make incident upon the photodetector direct. CONSTITUTION:Substrate 12 is fitted with nonmagnification type photodetector 11 opposing to original 1. Lighting source 13 lighting original 1 is located behind substrate 12 with original 1 beyond the substrate. Substrate 12 includes flat plate 14 providing occlusion. In this flat plate 14, optical fiber line 15 is so buried that light from light source 13 may be reflected by original 1 after advancing straight to make incident upon photodetector 11.

117. 发明专利

JPS5690571A MANUFACTURE OF PHOTOELECTRIC TRANSDUCER ELEMENT 失效
公开(公告)号：JPS5690571A
公开(公告)日：1981-07-22
申请号：JP16679679
申请日：1979-12-24
申请人： RICOH KK
发明人： SEGAWA HIDEO , SAKURAI KOUICHI , MORI KOUJI , ITAGAKI MASAKUNI
IPC分类号： H01L27/146 , H01L31/0264 , H01L31/09 , H01L31/18
摘要： PURPOSE:To provide a photoelectric transducer element having a superior characteristic and of which length may be extended by a method wherein CdS, CdTe, As2Se3 are piled up on a transparent conductive film on a light permeable substance, a desired heat treatment is applied to the substance in the air and nonactive gas. CONSTITUTION:Transparent conductive film 2 made of SnO2 or In2O3 etc. is vapourized on the base plate 1 made of soda glass etc., then the base plate is kept at about 350 deg.C, CdS3 is vapourized by about 3mu, heat treated at about 600 deg.C in an atmosphere containing O2, then the base plate is kept at about 350 deg.C, and CdTe4 is vapourized by about 2mu. Then, they are heat treated at 100 deg.C-700 deg.C in the mixture gas of Ar and O2, and processed at 500 deg.C in Ar for about 20min. As a result, hetero junction at a boundary between CdS and CdTe is enforced to produce such a photoelectric transducer element as having a low dark current under a reverse biasing and a fast photoresponsive speed. Then, the base plate is heated up to about 200 deg.C, As2Se3 5 is vapourized by about 0.2mum and Au electrode 6 is attached. In this way, a long photoelectric element may easily be produced.

118. 发明专利

JPS5682979A LIGHT INFORMATION READ UNIT 失效
公开(公告)号：JPS5682979A
公开(公告)日：1981-07-07
申请号：JP16007879
申请日：1979-12-10
申请人： RICOH KK
发明人： MORI KOUJI , SEGAWA HIDEO , SAKURAI KOUICHI , ITAGAKI MASAKUNI
IPC分类号： G06K7/10 , H04N1/028
摘要： PURPOSE:To improve the response of a light information read unit by driving a switch element direct by using a phtodetector having the photoelectromotive-force effect. CONSTITUTION:With gate pulses from shift register 6, MOS switches 5a-5n are turned on successively and photoreceptors 4a-4n are irradiated with light synchronously to generate photoelectromotive force. Since this photoelectromotive force turns on MOS switches 5a'-5n' successively, a current flow to MOS switches 5a'- 5n,. Then, those currents are proportional to the voltages applied to their gates, namely, photomotive currents generated by photoreceptors 4a-4n, so that they are extracted as a video signal via capacitor 8. Thus, the MOS switches are operated by the photoelectromotive force, so the trap effect of a carrier is reduced, and consequently the response is improved.

119. 发明专利

JPS55161203A PHOTOCOUPLING DEVICE 失效
公开(公告)号：JPS55161203A
公开(公告)日：1980-12-15
申请号：JP6819379
申请日：1979-05-31
申请人： RICOH KK
发明人： SEGAWA HIDEO , KOYAMA JIROU , NISHIHARA HIROSHI
IPC分类号： G02B6/122
摘要： PURPOSE:To arbitrary adjust the phase constant between optical guides by providing a photsensitive thin film on one optical guide in the photocoupling part of the photocoupling device or in proximity thereto and forming the grating image which periodically changes the refractive index of light. CONSTITUTION:A photosensitive film 4 is provided on one optical guide 3 in the coupling place L or in extreme proximity thereto as shown in the figure. The control light from the outside is radiated to this photsensitive thin film 4 to expose the grating image corresponding to the control light to this. Arrangement is so made that the refractive index of light at this portion is periodically changed. These enable the arbitrary adjustment of the phase matching conditions between the optical guides 2 and 3 and the enhancement of the photocoupling efficiency.

120. 发明专利

JPS55155303A OPTICAL FIBER DEVICE 失效
公开(公告)号：JPS55155303A
公开(公告)日：1980-12-03
申请号：JP6370879
申请日：1979-05-23
申请人： RICOH KK
发明人： SEGAWA HIDEO , KOYAMA JIROU , NISHIHARA HIROSHI
IPC分类号： G02B6/00 , G02B6/28 , G02B6/34
摘要： PURPOSE:To eliminate the need for separately connecting the elements having the function of optical filters and optical fibers by packing photosensitive material in the contact portions of the optical fibers and forming a grating directly in the layer by making use of its photosensitive characteristics. CONSTITUTION:At least two optical fibers 8, 9 which are cut and ground of clad parts 6 by a suitable length to exposre core parts 7 are coupled at a coupling length L. A layer 10 formed with optical grating is interposed in the contact portion of the optical fibers 8, 9. In forming the grating in the layer 10, the laser beams 11, 12 which are sensitive to photosensitive material are entered to the layer 10 at 2theta0 in the angle assumed by both beams to sensitize the layer 10. At this time, the bright and dark interference fringe is produced along the lengtwise direction of the optical fibers 8, 9, as a result of which only the bright fringe portions are sensitized and the optical grating is thus made. In this way, the need for separate connection of the elements having the function of optical filters and optical fibers may be eliminated.

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